Shoe-shaping machine



cLM. BRADFORD AND R. c. SIMMONS.

SHOE SHAPING MACHINE.

APPLIUAIIQN flLLU NOV 29, 1,918.

' Patented Sept. 5, 1922..

2 S.HEETSSHEET l.

c. M. BRADFORD AND R. 0-. SIMMONS.

SHOE SHAPING MACHINE.

APPLICAHON FILED NOV-29, 1918.

2. 92 IT 5m t M 2 m a D1,

Patented Sept. 5, 1922,

warren STATES 1,427,77e PATENT orriea.

CHARLES M. BRADFORD, OF BOSTON, AND RALPH C. SIMMONS, OF BEVERLY, MASSA- CHUSETTS, ASSIGNORS TO UNITED SHOE MACHINERY CORPORATION, OF PATER- SON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SHOE-SHAPIN G MACHINE."

Original application filed August 24, 1916, Serial No. 116,676. Patent No. 1,331,613, dated February 24, 1920. Divided and this application filed November 29, 1918. Serial No. 264,641.

To all whom it may concern:

Be it known that we, CHARLES M. BRAD- rono and RALPH C. SIMMONS, citizens of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, and Beverly, in the county of Essex and State of Massachusetts, respectively, have invented certain Improvements in ShoeShaping Machines, of which the following description, in connection with the accompanying drawings, is a specification,

like reference characters on the drawings indicating like parts in the several figures. This invention relates to machines for use in the manufacture of shoes for shaping the shoe on its last, this application being a division of our application which resulted in United States Letters Patent No. 1,331,613 granted February 24, 1920. Since the necessity for the use of machines of the type to which the invention relates arises particularly in the manufacture of turn shoes, the invention will be herein described with particular reference to such use, but it will be understood that the invention is not limited in utility to the manufacture of this particular type of shoe. L After a shoe of the above-mentioned type has been turned and mounted ona last it must be operated upon in various ways in order to shape it properly to the last and thus to insure a comfortable fit and a shapely appearance in the finished shoe. Operations with this end in view usually include a beating and an ironing of the upper round the toe and along the sides ofthe shoe, including the parts of the upper in and adjacent to the crease between the upper and the sole, in order to eliminate wrinkles and shape the upper smoothly to the last. A frequent result of this treatment of the upper is the opening or widening of the crease between the upper and the sole by reason of the downward bending of the margin of the sole through the action of the beating or ironing tool during its operation on the'upper. In order to correct this condition the sole likewise must be subjected to treatment, the operations on the sole having also in view the flattening of any ridge which there may be where the upper attaching seam is located and the shaping of portions of the sole, particularly in the shank, to the laterally convex curvature of the bottom of the ast.

This invention provides'improved means for shaping a shoe on its last, the construc tion shown being particularly designed for use in. shaping the sole. A feature of the invention consists in a novel construction and arrangement including a tool mounted for reciprocatory movement along the surface of a shoe and operating means designed to facilitate the presentation of the work to the tool and the manipulation of the work to secure the desired results on the particular portions requiring treatment. The construction shown comprises a tool which is mount ed to reciprocatein a path inclined to the vertical in such relation to the operators working position as to permit the shoe in the hands of the operator to be held against the tool with upwardly and ba ckwardly directed pressure. This construction has the advantage of aifordingthe operator a view of the portion of the work under treatment while permitting the work to be handled and manipulated as desired without undueeffort or inconvenience.

The above and other features of the invention, including improved operating means for the tool and certain details of construction and combinations of parts, will now be described with reference "to the accompanying drawings and pointed out in the claims.

In the drawings:

Figure 1 is a view in front elevation of thehead portion of a machine including an embodiment of this invention;

I Fig. 2 is a view ofthe same parts in side elevation, and

Fig. 3 is a plan view of a portion of the machine with a part of the casing broken which this is a division, including among other features meansfor performing a shaping operation upon the upper of the shoe, but it will be understood that such illustration is merely for convenience and not intended to impose any restriction upon the scope Ior'utility of the invention. The machine comprises a base casting'2 from which extends a bracket 4; supporting at its outer end a horizontal shaft 6 which is driven by means of a belt 8 from a main operating shaft 10. As shown in Figs. 2 and 3, the bracket 4 at its outer end is curved forwardly toward the operators working position and supports a pivot rod 12 extending substantially at right angles to the shaft 6 and upon which is mounted for oscillatory movement a tool support in the shape of a bell crank with one arm let extending substantially horizontally toward the end of the shaft 6 and the other arm 16 extending diagonally forward and downward. Secured in any suitable way to the arm 16 is a tool '18 which may be constructed of metal or of other material suitable for the purpose in View, the tool being elongated in a substantially horiontal direction and presenting comparatively narrow working face concavely curved transversely ofthepath of movementof the tool. For imparting oscillatory movement to the tool 18 the shaft 6. is provided at its front end with a crank disk 20, which carries a crank pin the projecting end. of which is journaled in a. block 24; havingtrunnions 26 mounted to slide endwise and to rock in hearings in spaced confrontingportions of the arm 14:. As the shaft 61's rotated and carries the crank pin 22 around in a circular path, oscillatory movement is imparted by the crank pin to the tool support 14,. 16, the block sliding from. side to side on itstrunnions 26 as *equired to accomodate itself to the different positions of the crank pin, while maintaining a continuously operative connection between the shaft 6. and. the tool. In order to permit the extent of the movement of thetool to bevaried at will, the crank pin 22 is mounted eccentrically upon a stud 28 which is positioned eccentnically in the crank diskQO and. is rotatable to position the crank pin at different distances from the center of the disk. llhe stud 28 is secured in adjusted" position by means of a clamping bolt 30.

In the operationof the machine the tool 18 is rapidly oscillated'in the manner above explained in a path which is inclined downwardly from front to rear, permitting. ashoe in the hands of the operator to be presented in an inclined position, as. shown in Fig. 2, and held. against the tool.with pressure directed. diagonally upward and backward. A s thus presented the portion, of

the shoe under treatment is within view of the operator to, enable him readily to observe the progress of the operation of the. tool upon the shoe, the relation of the path of movement of the tool to the operators working position enabling him conveniently, to hold the shoe in contact with the tool under the required pressure and to, manipulate, the

shoe as necessary for shaping the, different portions of the sole. The concave curvature of the working face of the tool arranged to extend laterally across the shoe, is of particular utility in operating along the margin of the solerto bend its edge toward the upper for closing the-crease adjacent to the upper and also in pressing down that part of the sole in which the seam is located and imparting to the sole, particularly in the shank, the lateral convex curvature which is desired for the finished shoe.

lVhile the tool 18 is herein illustrated as a rubbing tool, it shouldbe understood that the invention in its broader aspects is not limited to a construction in which the tool engages the work frictionally.

Having described the invention, what we claim as new and desire to. secure by Letters Patent of the United States is:

1. In a machine ofthe class described, a non-rotary tool for shaping the sole of a shoe by rubbing movement along the surface of the sole, and means for imparting simple oscillatory movement to the tool, the tool being arranged to receive the upwardly directed pressure of a shoe in the hands of the operator. l

2. In a machine of the class described, a tool for shaping the sole of a shoe by rubbing movement along the surface of the sole, the tool being arranged to receive the upwardly directed, pressure of a shoe in the hands of the, operator, and means for oscil' lating said tool lengthwise of the shoe about a single axis.

3. In a machine of the class cescribed, a

tool for shaping the sole ofa shoe by rubbing pressure, said tool extending substantially horizontally, and means for oscillatthe tool continuously about a single substantially horizontal axis during the operation ofthe machine, the tool being ar ranged to; operate by movements lengthwise of a shoe presented, thereto in the hands of the operator.

4:. In a machine of the class described, a tool for shaping the sole of a shoe by rubbing pressure, said, tool being concavely curved for transverse engagement with th bottom surface of the margin of the sole, and means for oscillating said tool, the tool being arranged to operate upon a shoe presented thereto in the hands of the operator.

' from front to rear and arranged: to operate upon a shoe presented by the operator bottom upward and held againstthe tool with pressure directed diagonally upward and backward, and means for operating the tool.

6., In machine of the class described, a tool for shaping the sole of a shoe by rubhing pressure applied progressively along the bottom surface of the sole, said tool being mounted to oscillate about a. single in a path inclined downwardly from front to rear and constructed to present a shoe engaging surface faciiw diagonall forward and downward for engagement With a shoe in the hands of the operator, and means for operating the tool.

7. In a machine of the class described, a tool for shaping the sole of a shoe by pres sure applied progressively along the bottom surface of the sole, said tool. being mounted for reciprocatory movement lengthwise of a shoe presented thereto in the hands of the operator and constructed to present a shoe enoaging face eoncavely curved laterally of the shoe, and means for operating; the tool.

8. In a machine of the class described, a tool for shaping the sole of shoe by pres sure applied progressivelv along the surface of the sole, said tool being mounted for os cillatory movement in a path inclined downwardly from front to rear and arranged to operate upon a shoe held against it by the operator With upwardly and baclnvardly dithe operator, means for operatin tl e tool,

and means for varying the extent of the movement of the tool.

10. A machine of the character described, comprising a shoe-engaginn' tool and a holder therefor arranged to execute oscillatory motionabout an axis, an operating: eccentric arranged to revolve about an axis substantially transverse to that of the tool-holder, and a member constructed and arranged to couple said eccentric and the tool holder so as to transmit motion from' the former to the latter, said member being'movable relatively to the tool-holder in lines parallel to the axis of the latter and being movable lengthwise of and relatively to the eccentric to assimilate the angular movement of the tool-holder.

11. A machine of the character described, comprising a shoe-engaging tool and a holder therefor arranged to execute oscillatory motion about an axis, an operating shaft arranged to rotate about an axis substantially transverse to tl at oft-he tool-holder, an eccentric carried b the shaft, and a member constructed and arranged to couple the eccentric and the tool-holder so as to transmit the eccentric motion to the latter, said member being movable relatively to the tool port comprising a bloclr slid-ably mounted on said support and a crank pin on the shaft journaled in said block, said crank pin being adjustable to vary the extent of oscillation of the tool support.

13. A machine of the character described, c mprisi a shoe-engaging tool and a holder therefor arranged to execute oscillatory motion about an axis, said holder having spaced confrontingportions, a member arranged between and pivotally connected to said confronting portions so to be mov; able relatively thereto along lines parallel to the axis of the tool-holder, and an operatinp eccentric engaging said member, between sa 2, confronting portions and arranged to revolve about an axis transverse to that of the tool-holder, said i nber being movable relatively to the eccen 1c lengthivise'of the latter so as to assimilate the angular movement of the toolholder.

1%. ln a machine of the class described, a tool for shaping the sole of a shoe by move ment along the surface of the sole, said tool constructed and arranged to operate upon a shoe presented thereto in the hand of the operator, and means for imparting to said tool reciprocatory movements in a path inclined to the horizontal and in such relation to the operators Worlrin position as to permit an operator to press the shoe diagonally upward and baclrivard against the tool.

In testimony whereof I, the said GI'ARLES M. Bnanronn, have signed name to this specification. I

Cl-lrirtnr S M. BRADFORD.

In testimony whereof I, the said RALPH C. SIMMONS, have signed my name to this specification.

. RALPH C. SIMhlONS. 

